Pope John XXIII
Vital Football Legend
To be fair, Derby aren't really a good example. The Baseball Ground was way too small for the number of fans they have. A new stadium helped enormously with their attendance, a new stadium in our case wouldn't lead to a massive increase in attendance like it did with them.
It tends to add 5k+.
It depends really. We've added 5k just in the last couple of years through showing a bit of ambition.
Could a new stadium bring 30k regularly? Yes, probably